On Sat, Jul 16, 2011 at 9:04 PM, jiangtao.jit <jiangtao.jit@xxxxxxxxx> wrote:
Hi, allrecently, i read some of the Kernel codesand i noticed that a bridge and lo device have only one queue when allocatedbut a bonding device can have multi queuesthey are all virtual deviceswhy they can have diffrent queue numbersit confused me a loti would really appreciate if someone could give me some guidelinesthanks very much
what is the purpose of a "queue"? reading the documentation:
each queue correspond to each physical interface "ethX". and as all these "slave" interfaces share the same MAC address, packets can be sent out through any of these interface and received via another - allowing redundancies in terms of physical links. multiple interfaces in the same multi-queue all share the same MAC address.
but the case of bridging is not really for load balancing purposes. "bridge" literally means bridging two different physical interface, so that network traffic can hop from one to the other (independent or ignorant of L3 protocol). each physical interface must have different MAC address, so that each "queue" is actually ONE interface.
See:
2011-07-16
jiangtao.jit
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Regards,
Peter Teoh
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